Instance Attribute Details

Specifies where in a web request to look for snippets of malicious SQL code.

#text_transformation ⇒ String

Text transformations eliminate some of the unusual formatting that
attackers use in web requests in an effort to bypass AWS WAF. If you
specify a transformation, AWS WAF performs the transformation on
FieldToMatch before inspecting a request for a match.

CMD_LINE

When you\'re concerned that attackers are injecting an operating system
commandline command and using unusual formatting to disguise some or all
of the command, use this option to perform the following
transformations:

Delete the following characters: \ \" \' ^

Delete spaces before the following characters: / (

Replace the following characters with a space: , ;

Replace multiple spaces with one space

Convert uppercase letters (A-Z) to lowercase (a-z)

COMPRESS_WHITE_SPACE

Use this option to replace the following characters with a space
character (decimal 32):

\f, formfeed, decimal 12

\t, tab, decimal 9

\n, newline, decimal 10

\r, carriage return, decimal 13

\v, vertical tab, decimal 11

non-breaking space, decimal 160

COMPRESS_WHITE_SPACE also replaces multiple spaces with one space.

HTML_ENTITY_DECODE

Use this option to replace HTML-encoded characters with unencoded
characters. HTML_ENTITY_DECODE performs the following operations:

Replaces (ampersand)quot; with "

Replaces (ampersand)nbsp; with a non-breaking space, decimal 160

Replaces (ampersand)lt; with a \"less than\" symbol

Replaces (ampersand)gt; with >

Replaces characters that are represented in hexadecimal format,
(ampersand)#xhhhh;, with the corresponding characters

Replaces characters that are represented in decimal format,
(ampersand)#nnnn;, with the corresponding characters

LOWERCASE

Use this option to convert uppercase letters (A-Z) to lowercase (a-z).

URL_DECODE

Use this option to decode a URL-encoded value.

NONE

Specify NONE if you don\'t want to perform any text transformations.

Possible values:

NONE

COMPRESS_WHITE_SPACE

HTML_ENTITY_DECODE

LOWERCASE

CMD_LINE

URL_DECODE

Returns:

(String)
—

Text transformations eliminate some of the unusual formatting that attackers use in web requests in an effort to bypass AWS WAF.